Unable to get message in rostopic echo /basic_grasping_perception/find_objects/result?

I am not able to get any visualisation of the cube in rviz as well when using this topic /basic_grasping_perception/object_cloud in rviz

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Hello @vasank1958,

Have you sent the goal to the /find_objects Action Server? Keep in mind that you need to send a goal to the Action Server in order to trigger the perception process. I’ve just tested it in the Academy and it is working properly for me.

Best,

Yes sir , I gave the goal command. I will try again and report back sir.

How I could send the goal to action Server?

Hello @dimi,

You have it explained in the Chapter’s notebook. It’s something like this:

rostopic pub /basic_grasping_perception/find_objects/goal grasping_msgs/FindGraspableObjectsActionGoal "header:
  seq: 0
  stamp:
    secs: 0
    nsecs: 0
  frame_id: 'base_link'
goal_id:
  stamp:
    secs: 0
    nsecs: 0
  id: ''
goal:
  plan_grasps: false" 

Best,